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With the advent of gravitational-wave astronomy it has now been possible to constrain modified theories of gravity that were invoked to explain the dark energy. In a class of dilaton models, distances to cosmic sources inferred from…

广义相对论与量子宇宙学 · 物理学 2022-10-05 Arnab Dhani , Anuradha Gupta , B. S. Sathyaprakash

Gravitational wave astronomy has recently emerged as a new way to study our Universe. In this work, we survey the potential of gravitational wave interferometers to detect macroscopic astrophysical objects comprising the dark matter.…

宇宙学与河外天体物理 · 物理学 2021-10-04 Joerg Jaeckel , Sebastian Schenk , Michael Spannowsky

Matter-wave interferometry is highly susceptible to inertial acceleration noises arising from the vibration of the experimental apparatus. There are various methods for noise suppression. In this paper, we propose leveraging the…

量子物理 · 物理学 2025-09-03 Meng-Zhi Wu , Marko Toroš , Sougato Bose , Anupam Mazumdar

Current terrestrial gravitational-wave detectors operate at frequencies above 10 Hz. There is strong astrophysical motivation to construct low-frequency gravitational-wave detectors capable of observing 10 mHz - 10Hz signals. While…

广义相对论与量子宇宙学 · 物理学 2017-03-27 Eric Thrane , Russell P Anderson , Yuri Levin , Lincoln D Turner

The prospects for detection of gravitational waves from precessing pulsars have been considered by constructing fully relativistic rotating neutron star models and evaluating the expected wave amplitude $h$ from a galactic source. For a…

天体物理学 · 物理学 2016-06-08 J. C. N. de Araújo , J. A. de Freitas Pacheco , J. E. Horvath , M. Cattani

We evaluate the sensitivity of a dual cloud atom interferometer to the measurement of vertical gravity gradient. We study the influence of most relevant experimental parameters on noise and long-term drifts. Results are also applied to the…

量子物理 · 物理学 2015-06-18 F. Sorrentino , Q. Bodart , L. Cacciapuoti , Y. -H. Lien , M. Prevedelli , G. Rosi , L. Salvi , G. M. Tino

Certain alternative theories of gravity predict that gravitational waves will disperse as they travel from the source to the observer. The recent binary black hole observations by Advanced-LIGO have set limits on a modified dispersion…

广义相对论与量子宇宙学 · 物理学 2017-12-05 Anuradha Samajdar , K. G. Arun

Gravity waves are generated by turbulent subsurface convection overshooting or penetrating locally into a stably stratified medium. While propagating energy upwards, their characteristic negative phase shift over height is a well-recognized…

太阳与恒星天体物理 · 物理学 2023-07-26 Hirdesh Kumar , Brajesh Kumar , S. P. Rajaguru

We study a method to induce resonant transitions between antihydrogen quantum states above a material surface in the gravitational field of the Earth. The method consists in applying a gradient of magnetic field which is temporally…

原子物理 · 物理学 2015-06-18 A. Yu. Voronin , V. V. Nesvizhevsky , O. D. Dalkarov , E. A. Kupriyanova , P. Froelich

We propose a new method of searching for the composition-dependent dilatonic waves, predicted by unified theories of strings. In this method, Earth's surface-gravity changes due to translational motions of its inner core, excited by…

广义相对论与量子宇宙学 · 物理学 2010-04-15 Sachie Shiomi

Gravitational-wave detectors have been well developed and operated with high sensitivity. However, they still suffer from mirror displacement noise. In this paper, we propose a resonant speed meter, as a displacement noise-canceled…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Atsushi Nishizawa , Seiji Kawamura , Masa-aki Sakagami

Newtonian noise limits the low-frequency sensitivity of ground-based gravitational wave detectors. While seismometers and geophones are commonly employed to monitor ground motion for Newtonian noise cancellation, their limited spatial…

Gravitational wave predicted by General Relativity is the transverse wave of spatial strain. Several gravitational waveform signals from binary black holes and from a binary neutron star system accompanied by electromagnetic counterparts…

广义相对论与量子宇宙学 · 物理学 2019-05-02 Kai Liao , Marek Biesiada , Xi-Long Fan

Increasing the laser power is essential to improve the sensitivity of interferometric gravitational wave detectors. However, optomechanical parametric instabilities can set a limit to that power. It is of major importance to understand and…

天体物理仪器与方法 · 物理学 2021-09-29 David Cohen , Annalisa Allocca , Gilles Bogaert , Paola Puppo , Thibaut Jacqmin , Virgo Collaboration

The search for gravitational waves is one of today's major scientific endeavors. A gravitational wave can interact with matter by exciting vibrations of elastic bodies. Earth itself is a large elastic body whose so-called normal-mode…

广义相对论与量子宇宙学 · 物理学 2014-09-05 Michael Coughlin , Jan Harms

In this work we study the influence of the newtonian noise on atom interferometers applied to the detection of gravitational waves, and we compute the resulting limits to the sensitivity in two different configurations: a single atom…

广义相对论与量子宇宙学 · 物理学 2013-10-17 Flavio Vetrano , Andrea Viceré

In the coming decade, the LIGO/VIRGO/GEO network of ground-based kilometer-scale laser interferometer gravitational wave detectors will open up a new astronomical window on the Universe: gravitational waves in the frequency band 10 to 10^4…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Eanna E Flanagan

We propose a quantum mechanical method of constraining non-Newtonian gravity at the nanometer range. In this method, a hybrid electro-optomechanical system is employed. Applying a strong driving field, we can obtain normal mode splitting of…

量子物理 · 物理学 2021-07-27 Lei Chen , Jian Liu , Ka-di Zhu

Gravitational Waves (GWs) have been detected in the $\sim$100 Hz and nHz bands, but most of the gravitational spectrum remains unobserved. A variety of detector concepts have been proposed to expand the range of observable frequencies. In…

广义相对论与量子宇宙学 · 物理学 2024-05-03 Sebastian Baum , Zachary Bogorad , Peter W. Graham

Despite being the dominant force of nature on large scales, gravity remains relatively elusive to experimental measurement. Many questions remain, such as its behavior at small scales or its role in phenomena ascribed to dark matter and…

原子物理 · 物理学 2024-08-19 Cristian D. Panda , Matthew J. Tao , Miguel Ceja , Holger Müller